On June 18, Sandford allegedly tried to grab a gun from a Las Vegas police officer’s holster at a Trump rally

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In this June 18, 2016, photo, police remove Michael Sandford as Republican presidential candidate Donald Trump speaks at the Treasure Island hotel and casino in Las Vegas. Sandford, a British man accused of trying to take a police officer's gun and kill the presumptive Republican presidential nominee pleaded not guilty to the charges in federal court on July 6, 2016.

A British man who allegedly tried to grab a police officer’s gun to kill Donald Trump last month pleaded not guilty on Wednesday, NBC News reported.

Michael Sandford, 20, was ordered held in federal custody, according to the prosecutor’s office. He was indicted on three counts, which each carry up to 10 years in prison, the U.S. attorney’s office said.

On June 18, Sandford allegedly tried to grab a gun from a Las Vegas police officer’s holster at a Trump rally. He never got the weapon and was arrested immediately. After his arrest, he allegedly told investigators he tried to grab the gun to “shoot and kill Trump.”